/*******************************************************************************
 * Copyright (c) 2010 liw.
 * All rights reserved. 
 * 
 * This file is part of VanBus.
 * 
 *     VanBus is free software: you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation, either version 3 of the License, or
 *     (at your option) any later version.
 * 
 *     VanBus is distributed in the hope that it will be useful,
 *     but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
 * 
 *     You should have received a copy of the GNU General Public License
 *     along with VanBus.  If not, see <http://www.gnu.org/licenses/>.
 * Contributors:
 *     liw - initial API and implementation
 ******************************************************************************/
package org.niclab.vanbus.query.db;

import org.niclab.vanbus.query.IQuery;
import org.niclab.vanbus.query.IQuery.QueryType;
import org.niclab.vanbus.query.handler.AbstractQueryHandler;

import android.content.Context;
import android.database.Cursor;

public class SimpleDBQueryHandler extends AbstractQueryHandler{

	public SimpleDBQueryHandler(IQuery query) {
		super(query);
		
	}

	@Override
	public boolean isSupported() {
		return getQueryStrategy().support(QueryType.DB_QUERY)&& getQuery().supportQueryType(QueryType.DB_QUERY);
	}

	public Object queryDB(){
		return null;
	}
	
	@Override
	public void query() {
		if(!query.isQueryFinished()){
			onPreQuery();
			
			Object result = queryDB();
			
			this.query.setQueryResult(result);
			
			onPostQuery();
		}
		
		if(getNextQueryHandler() != null)
			getNextQueryHandler().query();
				
		
	}

}
